Micrometer scale, operator&#39;s card, and layout sheet for printing and other work



E. E. KOTTENBACH MICROHETER SCALE, OPERATORS CARD, AND LAYOUT SHEET FORYRINTING AND OTHER WORK Filed March 1.9. 1920 2 Sheets-Sheat-1 HOLDER N?0f NEGATIVE ATToRl'vEx/s.n

May 4 1926,. 1,583,355

E. E., KOTTENBACH MICROMETER SCALE, OPERATORS CARD, AND LAYOUT SHEET FORPRINTING AND OTHER WORK Filed March 19, 2 Sheets-Sheet 2 GRIP/ER SIDEsoo afwor 53.000 afb/ark /17/1572?? ,ll/OUT Sff ATTORNEYS.

Patented May 4, 1926.

UNITED STATES ERNEST' E. xor'TnNB'AcI-I, 0F NEW Yoan', N. Y.

'MICRQMETER SCALE, or'ERA'oRsoARD, AND LAYOUT SHEET For; PRINTINGANDOTHER WORK.

Application filed March 19, 1920. Serial No. 367,168.

To4 all whom t may concern: v l

Be it knownthat I, Ennnsr E, Kofr'rnn- BACH, a citizen of the UnitedStates-.residing at New York, in the county of New York and State of NewYork, have invented new and useful Improvements in Micro-meter Scales,Operators y Sheets for lPrinting and Other Work, of which -theAfollowing is a specification. l I

This invention relates tov micrometer scales, operators cardsand layoutsheets forprmting and other works and while adapted `f or generalapplication,y is found to be of particular utility in the printinglartsand especiallyf Whenfusedj in conjunction with a photocomposinglmachine. l

In the photo composing art, it'is the practice when preparing for theprinting of multicolored pictures to prepare a plurality of platesfeachof which is adapted for the printing `v of ione, particular color. Theseplates areV Y usually prepared by a photographic process, generallythrough contact printing through negatives. It is the-practiceftomount'a plate for movement beforey a projectingl apparatus in which aphotographic negativeis adapted'to be supported infan accuratelydetermined position; When the negative and plate are'in readiness, lightis projected through the'negative and, serves to protect the printing onthe sensitized face of the plate. Under the usual practice, a pluralityof negatives are commonlyimounted von a revolving-.turret so that afterthe first exposure is made, the turretI is revo-lvedso as to'bringthesecond negative into position, whereupon the plate is shifted so asto place the unexposed portion of the plate before the newly positionednegative, whereupon, this unexposed portion of the plate is exposed. *yThese operations are repeated foi a plurality of negatives, say, forfourdifferent pictures, and until the entire'surfacel of the plate hasbeen exposed through the negatives corresponding to one particular colorofA the fourA pictures tobe printed. The four negatives'underconsideration are now removed from the turret and fourcorrespending.negatives are positioned therein, which latter four negatives are forthe printing o f a different color than 'thecolor of the firstfournegatives. f

he essentiallconsideration of theser two printing-operations isthat Athe`second four exposures be accuratelyl positioned on a secvCards, `andLayout ond plate by which-the first plate has been replaced. In otherwords, in av plurality of these consecutive operations of exposing aplurality of plates for severalcolors, it is es` sential ythat theseveral exposures on the several plates be in absolutely the same4relation to one another. In order to accomplish this `lresult rthemovements of yall `the plates with reference tothe several negatives towhich they are to be exposed must be identical, otherwise properregistration-in subsequent'printing.. can not be. secured.

The difficulty in practically obtainingthe correct registration hasconfronted the photo composing art from the start, andlvariousexpedients have been resorted to ,to bring about this result. One of themostpractical solutions o-f the problem is embodied inthe well known4micrometer registration scale used in conjunction with theIIIuebner--l3lis tein photo composingmachines,r wherein a series ofdialsj and scales are employed for gauging, the various movementsV oftheseveral plates tol the end that each-f, plate rmay in turn be subjectedto identically the same. movements. In the prior art device referred tothe scale 'is'intended tocalcuate from a zero point at the centre of theplate in an upwardly and downwardlyr direction, and to theright and tothe left Two series of scales are employed which are colored differentlyin accordance withthe particular direction of movement, eitherl to therightor to the left, upwardly or downwardly. v v

The I-Iuebner-Blistein` registering 4micrometer has done-much towardobtaining proper registration, and if operated .withconsiderable care,will produce excellent results. However, as the scales read backandforth and up and down and are colored in different colors in accordancewith the particular' direction of movement, the operator will, unless heis very careful,I effect incorrect readings as to direction, so, that hemay read an upA direction where a down direction should have been read,or read to the right, insteadof to the left. Y

, The object of the present vinvention is primarily to Vimprove upon theprior art scale inV such manner that false readings cannot occur, and`this I accomplish by basing the operations of the scale on calculationfrom a zero point at one corner of the plate'instead of at the exactcentre thereof. By this arl rangement the scale` reads in one` directionhorizontally, and a second scale of the same proportion, registersvertically. This gives a very simple construction and one on which theoperator cannot go wrong.

Another feature of the invention resides in the association with thedevice of an operators instruction card adapted to be filled out by aproper authority or authorities and containing definite instructions asto the operation of the scales, so that an operator need only to followthe definite instructionsgiven to obtain absolutely accurate results.

A further feature of the invention is a novel form of layout sheetwhereby perfect accuracy in the subsequent operations of obtainingregistration may be had.

The accompanying drawings illustrate one practical embodiment of theinvention, but the construction therein shown, is to be understood asillustrative, only, and not as defining the limits of the invention.

Figure 1 is a front elevation of a scale embodying the presentinvention.

Figure 2 is a vertical section on the line 22 of Figure l; and,

Figure 3 illustrates a layout sheet which I haveV found to giveexcellent results.

In the accompanying drawings, 1 designates a movable part of a photoprinting machine. In practice, this part may convenientlybe a part ofthe plate holder or may be some adjacent part associated and movabletherewith, so that as the plate holder is moved the part 1 moves inconjunction with it, whereby the movements of the plate holder areimparted to the part 1. -To the part 1, I secure a rack 2, which throughlongitudinal movement, imparts a rotary movement to a pinion 3 and alsosimultaneously imparts movement to a pinion 10, the pinion 3 iscompounded with a pinion 4 on stud 5 which rotates in a lug G forming apart of the housing. The pinion 4 meshes with a gear 8 mounted forrotary movement on the housing or standard 7, on the face of which gearoccurs a scale 9. The gears 3, 4, and 8 are so proportioned that themovements of the rack 2 may be read on the scale 9, with reference to afixed graduation or reading line 19, and in practice, I lind itconvenient to so lay out the scale 9 that its graduations willcorrespond to inches of movement on the rack 2. As a result of thisconstruction, the movement of' the plate holder may be accurately readin inches on the scale 9.

The pinion 10 which meshes with the rack 2 is compounded with the gear11 mounted on a spindle 12, secured to housing 7 by a pin 13. Gear 11meshes with the gear 14 fixed to a disk l5 by a pin 16 and the disk 15has graduations 17 in tens of thousandths of the unit of the gauge 9.The graduations of the disk 15 may be read with reference to astationary zero line 18 and stationary a graduati-ons 20, which areobservable through the window 21, formed in a stationary cover plate 23.Another part of the cover plate is cut away as at 22, to form a secondwindow through which the parts approaching the window 21 may be seenbefore arriving at the window. The cover plate 23 is suitably fastenedto the housing 7 by means of screws 24, and this cover plate also actsto hold the gear 8. For convenience, I preferably position the wordsScale N o. 1 on the face of the cover plate 23 for reasons hereinaftermanifest.

As the part 1 of the machine is moved, this motion is transmittedthrough the rack 2 simultaneously to the gear 8, bearing the scale 9 andto the disk 15 bearing the scale 17, so that the inches of movement ofthe part 1 may be read on the reading line19, while the decimal parts ofthe inch may be read from the graduations 17 in conjunction with thescale 20, as a Vernier. In this way accurate readings may be had of themovements of the part 1 and said part may be moved into anypredetermined position with an accuracy which has heretofore not beenobtainable. Thus, if a plate supported in a frame holder carried by thepart one has been exposed in several positions, a second plate supportedvby the same holder may be accurately placed in the same correspondingpositions, provided the scale readings of the several positions of thefirst plate are dupli- A cated for the positioning of the second plate.This duplication of scale readingsis facilitated by having only one setof scale readings before the operator. In other words, he reads thescale only in one direction, and is not required to differentiate rightor left directions or up or down directions, all on a single scale.

In practice, one ofthe devices shown in Figs. 1 and 2 is adapted toregister movement in a horizontal direction, while another device of thesame character is utilized to read vertical movements of the part 1.Thus an operator is simply required to read scale l to obtain accuratehorizontal placements and to read a similar sca-fle, which may be termedscale 2, for the reading of vertical movement. In order to preclude overtravel during the adjusting operations, a leaf spring 27, provided withan adjusting screw 28 is associated with the disk 15, and which isfiXedly mounted o-n the cover plate 23, so as to bear against the diskand frictionally hold the same against over travel. Y

It is important that in operating the scales to proper position the part1, lthe workman should have definite instructions, and to this end, Ihave provided an operators instruction card 29, adapted to be containedin the card holder 30 which is suitbly fastened on the cover plate 23 bya screw 31' and:Y on' tlie opposite" sides of Y the card holden are,formed guides l 32",L and when the' 'ca .rd 29"`- isl brought into"these guides it' rests fuponrthe stoppin" 36 l and is leldlin positiondirectly before 'tlie operator so that'liecan'rea'dily readthesarne. Anindex 331is'` slidable',y vertically', along the guides and 'is:frictiona'lly maintained in any po's'itinin"whichitis plafced by aspring 34. vOn the back of the plate 30' I preferably mountacard holder35, adapted to contain a' plurality'of'cards'to 'beuse'd for differentJOS- ,v

Thec'ardv29zis suitably lined andthe face of the slide`33- iscorrespondingly lined and thel spacesthereby provided are properlydesignated, to wit, the' first' one, 40,' is designated` Exposure No,the' second, 4l, Negative No, the'thid, 42, Holder No, the fourth, 43,Direction of Head of Negative on Machine, the fifth, 44, Set Scale 1 &2; the sixth, 45, is designated for the pressures and bears the Words,Block No. and Arm No.; the next, 46, bears the Words, Time of Exposure;and the line 47 is for Remarks, On the cards 29 exposures'may benumbered consecutively in the first column. Thus for the first exposurereadingon line 37, we find that negative number 307 is used with holdernumber A, that the head of the negative lis at the top and that onscalenumber 1, immediately below the card, the setting is to be 13.500.On the scale for reading the vertical adjustment, namely scale number 2,the setting should be as shown, 13.625, and for the setting of bothscales, block number One of the arm number Three should be employed togive the proper pressures, with the time of exposures 2 minutes and lsecond.

If it be assumed that this first exposure has been made, the slide 33 isbrou ht down to the second exposure 2, and the ine 38 of the instructioncard will give instructions for the making of the second exposure. Inlike manner, the line 39 will give instructions for the third exposure,etc., while the several exposures for one particular color are made on aparticular plate. Another plate having been associated with the part 1,the operator again starts at the top of the card and duplicates theoperations for this plate, and after this plate is finished for a secondcolor, a third 'plate 'is produced in the samemanner, etc., until theplates for the several colors have all been exposed.

It will be apparent that since all ofthe plates have been exposed underthe same identical conditions, and have been set with absolute accuracy,from the same chart, that the relative position of the several exposureson all of the plates will be identical and proper registration in theprinting must naturally result. Y

Inprderf that the 'use' of invention as' li'ereinbefore described" maybe inoreclearly understood, I have showni'rr F1gu're-'3 a novel" foi"1n'of master layout sheet, 'which` may be*I used'to advantage with* the`apparatu'sdescribed. :Tliisnast'er layout sheet bears: section lining"and'. the abscissa and ordinates are/numbered consecutively fromthenpper left'h'and'fco'rner of the sheet and notfrom Athe cei'itreofthe sheet', as has heretofore always"y beenM the case. lnA laying outthepo's'itions" ofthe pictureson .thisl vmaster layoutsheet,medial-vertical andmedial transversef lines'A are scratchedv on thenegatives48, 49, 50,l as shown iIrFigllgIne` 3, andthey airelaidl'onthemaster sheet inthfe positions which the' artist desires.' By vthenreading the 'abicissal and ordinates the exact positioning of-"th'e"centres'of the negatives marked by the crossing of the line 52 can bedefinitely determined, e. g. negative number 307 as shown in Figure 3the scale reading l for scale 1 would be 13.500, While the scale readingfor scale 2 would be about 13.625. All is clearly shown in theinstruction card 32 of Figure 1. The top of the negative designated Hand bearing the reference numeral 51 will show whether the negative ispositioned in distending relation or otherwise, and this is designatedin column 43 of the instruction card. The negative numbers aredesignated 53 in Figure 3 and may be read in column 41 of theinstruction card. V

In laying out the negative 50, the same procedure is followed and suchprocedure is also followed with reference to the negative designated 49and unmbered Negative No. 58 in Figure 3. l The reading for the centreof the negative on scale l will be 47.000, while the reading for scale 2will be 19.000 as will be apparent from Figure 3 and from column 44 ofthe instruction chart. The negative is applied 45 to the right as willbe noted inI column 43, but naturally shows 45 to the left in the layoutsheet.

It will be manifest, from the foregoing, that from the artists layoutsheet or the master layout sheet, shown in Figure 3 and used inconjunction therewith, that the desired positioning of the severalnegatives may be accurately obtained through following the instructionson the card 32, and if these instructions are followed 4for all of theplates of the dierent colors, perfect registration must result.

It will be understood that the specilic invention described may bemodified in formal respects, such as by the substitution ofequiv- YLetters Patent is:

l. A micrometer scale for photo composing machines and the likeembodying a rotatable dial graduated in units, a second rotatable dial.graduated in decimals of the unit, a fixed reading designationassociated with the unit dial, a fixed reading graduated designationassociated With the decimal dial, a prime mover adapted to be operatedby some movable part of the associated machine and proportionedoperating connections between the prime mover of the unit and decimaldials whereby the prime mover may be caused to definitely position themovable member and the machine with. which it .is associated by watchingthe dials while said member is manipulating. v

2. In al micrometer scale for photo composing machines and the like, acombination of a dial graduated in units a second dial graduated withfractional parts of the unit, a fixed reading designation associatedwith the unit dial, graduated reading designations associated with thefractionalunit dial to permit of a Vernier reading, means for operatingthe unit and fractional unit dials in synchronisrn, and a cover plateprovided with a sight opening, through which the Vernier reading may beaccomplished, and with a second sight opening adjacent the first,through which the operator may see the numbers appro'aching'the firstsight opening.

In testimony whereof I have hereunto signed my name.

ERNEST E. KOTTENBACI-I.

